Window-screen



(N0 Model.)

Patented Sept. 6., |898.

A. L. DILLENBECK.

WlNDDW SCREEN.

(Application med m. 1o, 1597.).

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akami u! UNITED e STATES ALBERT LESLIE DILLENBECK,

PATENT OEETc-E.;

OF FORT PLAIN, NEW YORK.

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 610,437, datedSeptember 6, 1898. Application filed December 10, 1897. Serial No.6611407. (No model.)

To all whom, t may concer-71,;

Be it known that I, ALBERT LESLIE DIL- LENBEOK, a citizen of the UnitedStates, residing at Fort Plain, in the county of Montgomery and State ofNew York, haveinvented certain new and useful Improvements inWindow-Screens and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to window-screens, and has for its object toprovide, in connection with an adjustable window-screen, means wherebythe screen proper may be adjusted independently of the Window-sash andat the same time support the sash and prevent the latter from descendingaccidentally.

The detailed objects and advantages of the invention will appear in thecourse of the subjoined description.

The inventionV consists in an improved screen-frame embodying certainnovel features, details of construction, and arrangement of parts, ashereinafter fully described, illustrated in the drawings, andincorporated in the claims.

In the accompanying drawings, Figure 1 is a perspective view of awindow-screen constructed in accordance with the present invention. Fig.2 is .a vertical cross-section through a window frame and sash, showingthe screen in its applied position. Fig. 3 is a detail sectional viewfof a portion of the screen, showing one of the extension-wings and themeans for thrusting said wings outwardly. Fig. 4t is a top plan view ofthe screen.

Similar numerals of reference designate corresponding parts in all theviews.

The improved screen contemplated in this invention embodies,essentially, a pair of upright side bars 1, each of the said bars beingprovided at its upper end with a notch 2, in.

the bottom of which is arranged a pointed tooth or spur 3 to enter thebottom rail of a sash while said sash is rested in the notch 2. At itsbottom end each side bar is provided with a similar notch et, designedto tit the window-sill, and while said notches are arranged to engagethe window-sill the spurs 3 and 5 serve to maintain the screen in properposition between the sash and the frame and prevent the lateral escapeof the screen. The bars 1 are provided upon their inner adjacentsurfaces with vertical grooves or ways 6, in which Vslide the oppositeside edges of the screen proper, (indicated at 7.) The grooves 6 arearranged just at one side of the sliding sash, so that the screen propermay be slid up and down along one side of the sash without the necessityof raising the sash and removing the screen-frame, as in the ordinarymanner. By forming the notches 2 in the upper ends of the bars 1upwardly-extending guards S are provided, which serve, by restingagainst thesliding sash, to properly position the screen-frame. In thesame manner guards 9 areformed at the lower ends of the bars l for thesame purpose. The bars 1 are connected at top and bottom by means ofhorizontal crossrails 10, and these rails are provided with grooves orways 11, in which slide the stems 12 of a pair of extension-wings 13, bymeans of which the width of the screen-frame may be increased ordiminished to suit the width of the window-frame. The stems 12 slide inthe grooves or ways 11, and between their inner ends are interposedsprings 14, one

spring being employed for each horizontal rail 10. The springs serve tothrust the stems 12 apart and hold the extension-wings 13 in close andyielding contact with the pulleystile of the window-frame, thus makingthe screen-frame self-adjusting in width. Instead of providing thehorizontal rails 10 with grooves 11 said rails may be made hollow ortubular to receive the stems 12, thus inclosing and hiding the stems 12land springs 14.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A screen-frame comprising vertical side bars and connections betweenthe same, in

combination with the screen proper having 2. A screen-frame, embodyingside bars screen-frame is placed, substantially as degrooved upon theirinner surfaces and havscribed. i I0 ing reVersely-disposed notches attheir upper In testimony whereof I affix my signature and lower ends,and also provided with spurs in presence of two witnesses.

arranged in said notches, in combination with ALBERT LESLIE DILLENBECK.a screen proper slidingly related to the screen- Witnesses: frame andmoving in a plane slight-ly at one WVM. E. DIEFENDORF,

side of the window-sash beneath which the k THEODORE S. WATERS.

